This dialog is displayed when you click 
in the Add Aggregation dialog. It helps you to specify the field on which the dynamic aggregation will be based. See the dialog.
In this dialog, all the group objects 
and detail objects 
in the current business view and the dynamic formulas 
that have been created in the report will be listed. Select the required field and then click OK.
OK
Selects the field and closes this dialog.
Cancel
Cancels the selection of a field and closes the dialog.
Help
Displays this help document.
